If the diameter of a circle is 18 inches then its radius is 18/2 = 9 inches
Radius is 36/2 = 18 inches
36*pi inches
Circumference = 2*pi*radius or pi*diameter Circumference = 36pi inches
6 inches
Circumference = 2*pi*rr(radius) = diameter/2 = 36 in/2 = 18 inchesCircumference = 2*pi(18 inches)= 113 inches=========
A circle with a radius of 18 inches has an area of 1,017.88 square inches.
Radius is 18/2pi = 2.865 inches rounded to 3 decimal places
the equation to find circumference is C=2*pi*radius so when you have a radius of 18 inches, C=113.097
Radius of circle: 18/2pi = 2.865 inches rounded to 3 decimal places
18 pi inches
18 inches
18 in
The diameter is twice the radius in inches: 18*36 = 648 inches
A circle with a radius of 9 inches has a circumference of 56.55 inches and a diameter of 18 inches.
The radius is equal to half of the diameter. So the radius in this case would be 18/2 = 9 inches.
It is 2*18 = 36 inches.
Radius is 36/2 = 18 inches